diff --git a/.github/workflows/regression-tests.yml b/.github/workflows/regression-tests.yml
index 69b7bf30..6c77a09e 100644
--- a/.github/workflows/regression-tests.yml
+++ b/.github/workflows/regression-tests.yml
@@ -30,6 +30,9 @@ jobs:
         python -m pip install --upgrade pip
         pip install coveralls
         pip install "${{ matrix.numpy-version }}"
+        if [ "${{ matrix.python-version }}" = "3.8" ]; then
+          pip install "reportlab<4"
+        fi
         pip install .[all]
     - name: Run tests
       run: |